Home / 3,115.52-4,672.47-923.73

Finding the Fourth Proportional to 3,115.52, 4,672.47 and 923.73

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Solution

The fourth proportional to 3,115.52, 4,672.47 and 923.73 is: 1,385.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.52 : 4,672.47 = 923.73 : x
  2. Step 2: Convert to fraction form
    3,115.52/4,672.47 = 923.73/x
  3. Step 3: Cross multiply
    3,115.52x = 4,672.47 × 923.73
  4. Step 4: Simplify right side
    3,115.52x = 4,316,100.71
  5. Step 5: Solve for x
    x = 4,316,100.71/3,115.52
  6. Step 6: Final answer
    x = 1,385.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.